852

Millennium:	1st millennium
Centuries:	8th century · 9th century · 10th century
Decades:	820s · 830s · 840s · 850s · 860s · 870s · 880s
Years:	849 · 850 · 851 · 852 · 853 · 854 · 855

852 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishment and disestablishment categories
Establishments – Disestablishments

852 in various calendars
Gregorian calendar	852 DCCCLII
Ab urbe condita	1605
Armenian calendar	301 ԹՎ ՅԱ
Assyrian calendar	5602
Bengali calendar	259
Berber calendar	1802
Buddhist calendar	1396
Burmese calendar	214
Byzantine calendar	6360–6361
Chinese calendar	辛未年 (Metal Goat) 3548 or 3488 — to — 壬申年 (Water Monkey) 3549 or 3489
Coptic calendar	568–569
Discordian calendar	2018
Ethiopian calendar	844–845
Hebrew calendar	4612–4613
Hindu calendars
- Vikram Samvat	908–909
- Shaka Samvat	773–774
- Kali Yuga	3952–3953
Holocene calendar	10852
Iranian calendar	230–231
Islamic calendar	237–238
Japanese calendar	Ninju 2 (仁寿２年)
Javanese calendar	749–750
Julian calendar	852 DCCCLII
Korean calendar	3185
Minguo calendar	1060 before ROC 民前1060年
Nanakshahi calendar	−616
Seleucid era	1163/1164 AG
Thai solar calendar	1394–1395

Wikimedia Commons has media related to 852.

Year 852 (DCCCLII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar.

Events

March 4 – Trpimir I, duke (knez) of Croatia, and founder of the Trpimirović dynasty issues a first state document in Bijaći of all Slavonic peoples. In this Latin document Trpimir refers to himself as the "duke of the Croats" (dux Chroatorum) and to his country as the "state of the Croats" (regnum Chroatorum).
Presian I, ruler (khan) of the Bulgarian Empire, dies after a 23-year reign in which the Bulgarians have expanded into Upper Macedonia and Serbia. He is succeeded by his son Boris I as monarch of Bulgaria.
Emperor Lothair I and his (half) brother Charles the Bald join forces to remove the Vikings from the island of Oscelles in the River Seine. After this has failed, Charles again pays them tribute (Danegeld).

A Viking fleet of 350 vessels enters the Thames Estuary before turning north and engages the Mercian forces under king Beorhtwulf. The Mercians are defeated and its remnants retreat to their settlements. The Vikings then turn south and cross the river somewhere in Surrey, there they are slaughtered by a West Saxon army led by king Æthelwulf and his son Aethelbald at Oak Field (Aclea).^[1]
King Æthelstan, the eldest son of Æthelwulf, is killed by a Viking raiding party. He is succeeded by his brother Æthelberht who becomes sub-king of Kent, Essex, Surrey and Sussex (approximate date).
Beorhtwulf dies after a 12-year reign and is succeeded by his son Burgred as king of Mercia.

Abd al-Rahman II, Umayyad emir of Córdoba, dies after a 30-year reign in which he has made additions to the Mosque–Cathedral at Córdoba. He is succeeded by his son Muhammad I, who will put down several revolts of the Muladi and Mozarabs in Muslim controlled areas in al-Andalus (modern Spain).

Abbas ibn Firnas, Muslim physician and inventor, makes a first recorded tower jump in Córdoba. He wraps himself with vulture feathers and attaches two wings to his arms. The alleged attempt to fly is unsuccessful, but the garment slows his fall enough that he only sustains minor injuries.^[2]

↑ Paul Hill (2009). The Viking Wars of Alfred the Great, p. 14. ISBN 978-1-59416-087-5
↑ White 1961, pp. 100–101.

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